oj.uz

Submission #380251

# Submission time Handle Problem Language Result Execution time Memory
380251 2021-03-20T17:21:22 Z cpp219 Trading (IZhO13_trading) C++14
100 / 100
 550 ms 45956 KB 
#pragma GCC optimization "Ofast"
#pragma GCC optimization "unroll-loop"

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define fs first
#define sc second
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 3e5 + 9;
const ll inf = 1e16 + 7;

vector<LL> g[N];
ll n,st[4*N],lazy[4*N],L,R,val,m;

void Pass(ll id){
    ll t = lazy[id]; lazy[id] = 0;
    st[id*2] += t; lazy[id*2] += t;
    st[id*2 + 1] += t; lazy[id*2 + 1] += t;
}

void upd(ll id,ll l,ll r,ll u,ll v,ll val){
    if (v < l||r < u) return;
    if (u <= l&&r <= v){
        if (u == v) st[id] = val,lazy[id] = val;
        else st[id] += val,lazy[id] += val;
        return;
    }
    ll mid = (l + r)/2; Pass(id);
    upd(id*2,l,mid,u,v,val); upd(id*2 + 1,mid + 1,r,u,v,val);
    st[id] = max(st[id*2],st[id*2 + 1]);
}

ll Get(ll id,ll l,ll r,ll u){
    if (u < l||r < u) return -inf;
    if (l == r) return st[id];
    ll mid = (l + r)/2; Pass(id);
    return max(Get(id*2,l,mid,u),Get(id*2 + 1,mid + 1,r,u));
}

void out_seg(){
    for (ll i = 1;i <= m;i++) cout<<Get(1,1,m,i)<<" ";
    cout<<"\n";
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    #define task "tst"
    if (fopen(task".inp","r")){
        freopen(task".inp","r",stdin);
        //freopen(task".out","w",stdout);
    }
    cin>>n>>m;
    for (ll i = 1;i <= m;i++){
        cin>>L>>R>>val;
        g[L].push_back({i,val}); g[R + 1].push_back({i,-inf});
    }
    for (ll i = 1;i < 4*N;i++) st[i] = -inf;
    for (ll i = 1;i <= n;i++){
        for (auto j : g[i]){
            ll pos = j.fs,val = j.sc;
            upd(1,1,m,pos,pos,val);
        }
        cout<<max(0ll,st[1])<<" "; upd(1,1,m,1,m,1);
    }

}

Compilation message

trading.cpp:1: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    1 | #pragma GCC optimization "Ofast"
      | 
trading.cpp:2: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    2 | #pragma GCC optimization "unroll-loop"
      | 
trading.cpp: In function 'int main()':
trading.cpp:52:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   52 |         freopen(task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 16748 KB Output is correct
2 Correct 11 ms 16748 KB Output is correct
3 Correct 12 ms 16748 KB Output is correct
4 Correct 12 ms 16876 KB Output is correct
5 Correct 12 ms 16876 KB Output is correct
6 Correct 14 ms 17004 KB Output is correct
7 Correct 259 ms 31444 KB Output is correct
8 Correct 287 ms 32716 KB Output is correct
9 Correct 293 ms 33228 KB Output is correct
10 Correct 314 ms 33864 KB Output is correct
11 Correct 340 ms 34884 KB Output is correct
12 Correct 356 ms 35656 KB Output is correct
13 Correct 395 ms 35904 KB Output is correct
14 Correct 380 ms 36032 KB Output is correct
15 Correct 463 ms 38744 KB Output is correct
16 Correct 490 ms 39380 KB Output is correct
17 Correct 456 ms 38400 KB Output is correct
18 Correct 463 ms 42696 KB Output is correct
19 Correct 465 ms 38728 KB Output is correct
20 Correct 550 ms 45956 KB Output is correct